pe-65506 Pulse Specialty Components, pe-65506 Datasheet - Page 2

• Manufacturer Part Number: pe-65506
• Description: Fiber Channel Dual Transformers - For Use With 75 Ohm Coaxial Or 150 Ohm Stp Cable 11/07
• Manufacturer: Pulse Specialty Components

FIBRE CHANNEL
DUAL TRANSFORMERS
For Use with 75Ω Coaxial or
150Ω STP Cable
Application Notes:
Fibre channel is a bi-directional point-to-point serial data link, structured for
high performance transmission. To allow low cost interconnection between
supercomputers and high-end peripherals, the ANSI X3T9.5 FC-0
Committe has specified coaxial and STP cable interconnects as an
alternative to optical fibre cable. Although the transmission distance
through alternative cable is limited in distance, it offers a significant cost
advantage over the optical fibre interface. Pulse has designed the fibre
channel dual transformers specifically for point-to-point coupling
to shielded twisted pair (STP) and coaxial cable. This transformer series
complies with the ANSI X3T9.5 FC-0 specification over 133, 266, and
531Mbps data rates over distances of up to 100 meters on coaxial and
STP cable.
The isolation transformers protect the station from static charges that may
develop on the cable and prevent ground loop currents from being
transferred between stations. When coaxial links are used, the
transformers also provide a balance to single-ended connections between
he transmitter/receiver IC and the coax. The devices have also been
Typical Application Circuit for Coax Cable Transmission
Performance warranty of products offered on this data sheet is limited to the parameters specified. Data is subject to change without notice. Other brand and product
names mentioned herein may be trademarks or registered trademarks of their respective owners.
© Copyright, 2007. Pulse Engineering, Inc. All rights reserved.
ww.pulseeng.com
For More Information:
Pulse Worldwide
Headquarters
12220 World Trade Dr.
San Diego, CA 92128
U.S.A.
www.pulseeng.com
TEL: [phone]
FAX: [phone]
Pulse European
Headquarters
Einsteinstrasse 1
71083 Herrenberg
Germany
TEL: [phone]
FAX: [phone]
Pulse China
Headquarters
B402, Shenzhen
Tech-Innovation International
10th Kejinan Rd.
High-Tech Industrial Park
Nanshan District, Shenzen
China
TEL: [phone]
FAX: [phone]
designed to provide commonmode rejection within the transmission band
and thus reduce the EMI. The wide bandwidth of these devices minimizes
data dependent jitter by providing fast signal rise times. In addition, use of
the proper transformers will provide sufficient lowend bandwidth
to minimize baseline wander, another contributor to jitter. Low end
bandwith is a function of the channel impedance and the primary
inductance of the transformer. The selection table, on the front side of this
data sheet, matches the proper transformer to the different cables and
data rates. STP cable has a 150Ω characteristic impedance, while the
FC-0 specification also allows the usage of RG-6, RG-58 coax and RG-179
mini-coax. Each of the coaxial cables has a 75Ω characteristic impedance.
The dual package allows connection of both the transmit and receive
channels, as shown in the application circuit below. Surface mount
packaging allows a cost effective solution while providing over -40dB
of crosstalk attenuation out to 800MHz. The transformers are available in
either tubes or Tape & Reel packaging.
Pulse North China
Room 1503
XinYin Building
No. 888 YiShan Road
Shanghai 200233
China
TEL: [phone]
FAX: [phone]
Pulse South Asia
150 Kampong Ampat
#07-01/02
KA Centre
Singapore 368324
TEL: [phone]
FAX: [phone]
Pulse North Asia
No. 26
Kao Ching Road
Yang Mei Chen
Taoyuan Hsien
Taiwan, R. O. C.
TEL: [phone]
FAX: [phone]
A101.A (11/07)